I did a guided trip through Rat's Nest Cave with coworkers from MEC.
The approach involves a short hike to the mouth of the cave, where our gear gets left.
The trip includes some walking through the cave, a rappel, and crawling through a couple tight spots.

The group hikes up to the entrance.

Our guide at the cave entrance.

Warning sign around the cave.

Warning at the mouth of the cave that it could collapse at any time...